In GMap views CCK fields do not hide when they are empty

Hi,

When you select Fields in some other Views module style and the CCK fields are without a value, the labels are not rendered. The GMap style renders the labels anyway though, which is a bit annoying. It seems a small change to theme_gmap() would be required to drop things from $marker['text'] when there is no value, but since I can't figure out how the auto-sizing of the info bubbles occurs, I don't want to mess with it. =(